no, it refers to a BRIDGE system that allows the pitch of the entire guitar to be freely adjusted via a bar. However, the name is incorrect, it should be called a vibrato bar. The correct definition of tremolo is a quick repetition of notes, as he showed with his picking hand.

Who cares? In this unfortunate age where people like The Dixie Chicks and 50 Cent are revered, as many people as possible should be exposed to actual virtuosity...even if it is just light-speed woodshedding.